Active clinical trials for "Respiratory Distress Syndrome"

Phase I-II Clinical Trial - Safety and efficacy of umbilical-cord-derived mesenchymal stem cell (UC-MSC) in patients with Acute Lung Injury ,open label, controlled prospective study.

Currently, there is no proven effective pharmacologic treatment available for patients with the acute respiratory distress syndrome (ARDS). Mesenchymal stem cells have been shown to be effective in treating several inflammatory diseases. The main purpose of this study is to assess the safety of allogeneic adipose-derived mesenchymal stem cells in patients with ARDS.

Mortality in Acute Respiratory Distress Syndrome is high (40 to 60 %). Protective mechanical ventilation, until 2010, was the cornerstone of the ARDS therapeutic strategies. Recently, a prospective multicenter study demonstrates that a 48h continuous infusion of neuromuscular blocking agents (NMBA) have a positive impact on mortality of ARDS patients. (Papazian et al. ACURASYS Study. NEJM 2010; 363:1107-16). The mechanisms through which NMBAs could improve survival remain speculative. They are as follows: reduction of the consumption of oxygen linked to ventilatory workload; increase of chest wall compliance improving mechanical ventilation during ARDS and better adaptation to the protective ventilation strategy; anti-inflammatory effect contributing to a reduction in pulmonary inflammation and improvement in oxygenation, reduction of the variations of transpulmonary pressure (TPP) by the way of better synchronisation between patient and the ventilator. The use of NMBA could also reduce the ventilator induced lung injury by a better control of TPP.

The care of acute respiratory distress syndrome (ARDS) has been significantly improved by learning from experimental and physiological research works and by a series of randomized controlled trials. The mortality of this syndrome remains however high. Numerous experimental and clinical works demonstrated that a ventilatory mode authorizing the patient to make, from the acute phase, spontaneous breathing cycles superimposed on assistance delivered by the ventilator (BIPAP-APRV mode) allowed to improve gas exchanges and hemodynamic tolerance of the ventilation while reducing the need for sedative drugs. This ventilatory mode could also reduce the risk of diaphragmatic dysfunction induced by ventilation. Consequently, our hypothesis is that this ventilatory mode could allow a reduction of mortality in ARDS patients. The aim of this multicenter, prospective, randomized, controlled, open study is to compare the effects of two ventilatory strategies on the mortality of ARDS patients and placed under mechanical ventilation.

The purpose of this study is to assess the effect of HFNC on esophageal pressure and diaphragmatic function in patients with acute respiratory failure

The present study was designed to evaluate, in premature babies with RDS breathing spontaneously, the efficacy of combined treatment with nasal continuous positive airway pressure (CPAP) and aerosolized surfactant. The first objective of investigators is to assess the safety of surfactant nebulization in this clinical situation, and to find out whether treatment with aerosolized surfactant would reduce the need for mechanical ventilation. And other aim suggest that aerosolized dates compared with dates of INSURE (intubation-surfactant-extubation) and minimally invasive surfactant therapy (MIST) method.

The objective of this study is to evaluate the efficacy of noninvasive ventilation with helmet in reducing endotracheal intubation rates in comparison with Noninvasive Ventilation (NIV) facemask among patients with Acute Respiratory Distress Syndrome (ARDS)

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing the coronavirus disease 2019 (COVID-19) affect at late march 2021 more than 127 millions of persons worldwide (including more than 4.5 millions in France, according to John Hopkins University https://coronavirus.jhu.edu/map.html, consulted 2021/3/25). Among these persons, 17% of the confirmed cases the COVID-19 develop an acute respiratory distress syndrome (ARDS) (Chen et al., 2020), requiring an hospitalization in intensive care unit with mechanical ventilation for prolonged periods (in median up to 21 days whereas 3.3 is the usual mean length of stay). This prolonged period of inactivity causes dramatical muscles and cardio-respiratory losses. These patients experience a dramatical decrease in the physical ability which is reinforce by the protective isolation measures and containment to prevent the further spread of the virus. Rehabilitation of patients with a severe form of the COVID-19 faced new challenges due to the novelty of the disease and protective isolation measures to prevent the further spread of the virus. Rehabilitation target a recovery of the cardio-respiratory, muscle deficits and improvement in activity. Functional electrical stimulation (FES) is one innovative technique, among other. FES have been shown as effective to improve the respiratory function in patients with a severe chronic obstructive pulmonary disease (Acheche et al., 2020; Maddocks et al., 2016), reduce the muscle loss due to zero gravity in space for astronauts (Maffiuletti et al., 2019), or increase strength in persons with incomplete spinal cord injury (de Freitas et al., 2018). FES has been recently delivered during cycling to restore pedaling movements with an adequate rhythm of muscle contraction. To date, FES cycling has been successfully administered in patients with spinal cord injury, and has been shown to be more effective in patient with severe COPD for improving the exercising intensity; reducing fatigue and improving quality of life in persons with multiple sclerosis (Backus et al., 2020). In a pilot study, we shown that 4 week of physical therapy incluing FES cycling resulted in a fasten recovery of active postures as compared to physical therapy including cycling alone. (Mateo et al., under revision). Therefore, we hypothesize that a 4-week period of rehabilitation based on physical therapy with FES cycling would result in a significantly increase of activity profile (decrease in inactive posture duration) in patient with a severe form of COVID-19 (i.e., with an ARDS requiring mechanical ventilation).

Mortality of COVID-19 pneumonia with acute respiratory distress syndrome (ARDS) is extremely high in preliminary reports amounting to 50-60%. Duration of mechanical ventilation in these patients appears to exceed standard duration of mechanical ventilation in non-COVID-19 ARDS patients, suggesting that COVID-19 patients may be particularly at risk for ventilator-induced lung injury. Treatment of COVID-19 ARDS patients is to date mainly supportive with protective mechanical ventilation (ventilation with low tidal volume (VT) i.e. 6 ml/kg of predicted body weight (PBW) and plateau pressure control below 30 cm H2O). Mechanical ventilation with VT reduction below 6 ml/kg PBW in ARDS may reduce alveolar strain, driving pressure and hence ventilator-induced lung injury. Investigators recently performed a multicenter pilot study on 34 moderately severe to severe ARDS patients. This study demonstrated that ultraprotective ventilation with ultra-low VT (≤4.2 ml/kg PBW) without extracorporeal circulation may be applied in approximately 2/3 of the patients, with a 4 cmH2O median reduction in driving pressure, at the price of transient episodes of severe acidosis in approximately 1/3 of the patients. Investigators hypothesized that ultraprotective ventilation without extracorporeal circulation may reduce the mortality at day-90 and increase the number of days free from mechanical ventilation (VFD) at day-60, as compared to protective ventilation.

The purpose of this study was to evaluate the curative effect of Levosimendan on ARDS patients through omni-directional and multi-angle objective quantitative indexes, and to study the responsiveness of ARDS with or without right ventricular insufficiency to the treatment of Levosimendan, and to indirectly confirm whether Levosimendan had lung protective mechanism other than calcium sensitization to ARDS patients, such as inhibiting inflammatory reaction to reduce pulmonary capillary leakage and alveolar epithelial cell injury. Relaxation of bronchial smooth muscle improves pulmonary ventilation function. To provide new methods and ideas for clinical treatment of ARDS.